The Art of Assembly: Exploring Low-Level Mastery with Randall Hyde

In this episode of Hanselminutes, Scott Hanselman talks with Randall Hyde, renowned for his expertise in programming and assembly language. Known as the creator of the Lisa Assembler and the author of The Art of Assembly Language and Write Great Code series, Randall shares his journey from developing in assembler for early computing systems to working on modern nuclear reactor control systems. He discusses the evolution of software development, the value of assembly language in today's programming landscape, teaching methodologies, and the balance between low-level understanding and high-level productivity.

Key TopicsRandall Hyde's Academic and Professional Background (00:02.72)Assembly Language Beginnings with the Lisa Assembler (00:33.45)The Evolution of Randall's Work from Games to Nuclear Engineering (04:54.99)The Importance of Understanding Low-Level Machine Behavior (06:46.75)How Assembly Language Has Evolved and Its Modern Relevance (16:11.62)HLA (High-Level Assembler) as a Teaching Tool (20:20.46)The Rise of ARM Architectures and Changing Processor Technology (29:24.59)The Need for Efficient Code in the Multi-Core Era (33:31.42)Main TakeawaysLow-Level Understanding is Foundational: Randall emphasizes that understanding machine organization and low-level behavior is essential to writing better high-level code.Practical vs. Academic Learning: College enforces learning through structure, but much of coding excellence comes from individual, rigorous practice in understanding how systems work under the hood.Evolving Utility of Assembly Language: While assembly language isn’t a daily tool for most programmers, knowing it provides critical insights into low-level optimizations essential for performance-critical applications.Shift in Performance Gains: Modern compilers and multi-core systems have reduced the performance advantages of assembly, yet efficient code writing remains vital as architecture advances slow down.Accessible Education: Randall’s approach – from pioneering HLA as a bridge to assembly to his comprehensive Write Great Code series – has focused on making low-level concepts easier for new learners to grasp.Resources MentionedThe Art of Assembly Language by Randall HydeWrite Great Code Series (Volumes 1-4) by Randall HydeVolume 2: Thinking Low-Level, Writing High-LevelRANDALLHYDE.COM: Hyde's website for books, support materials, and resourcesNo Starch Press (Publisher): NoStarch.com

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Fresh Tech Talk from Fresh Faces

[That's good Mojo - Creating a Programming Language for an AI world with Chris Lattner]

That's good Mojo - Creating a Programming Language for an AI world with Chris Lattner

Show #1037 Feb 19 2026
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What does it take to design a programming language from scratch when the target isn’t just CPUs, but GPUs, accelerators, and the entire AI stack? In this episode, I sit down with legendary language architect Chris Lattner to talk about Mojo — his ambitious attempt to rethink systems programming for the machine learning era.

We trace the arc from LLVM and Clang to Swift and now Mojo, unpacking the lessons Chris has carried forward into this new language. Mojo aims to combine Python’s ergonomics with C-level performance, but the real story is deeper: memory ownership, heterogeneous compute, compile-time metaprogramming, and giving developers precise control over how AI workloads hit silicon.

Chris shares the motivation behind Modular, why today’s AI infrastructure demands new abstractions, and how Mojo fits into a rapidly evolving ecosystem of ML frameworks and hardware backends. We also dig into developer experience, safety vs performance tradeoffs, and what it means to build a language that spans research notebooks all the way down to kernel-level execution.

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